When I play videos it does this weird thing like freezes but plays

my sound is not playing well. it started to do this weird sound when i play a song/video. i can not explain it. so i recorded a video of my laptop while playing a video then it playing a MP3 song. so you can fully get what im trying to explain.
below is the link to the video:

Also confirm your drivers are updated for your sound card
One way to do this is to do a Windows Update and select "Custom"
Another way is to go to your Laptops support page, they usually have an auto detect button, that you can use to download your audio drivers.

If so then it may be better to uninstall it completely, then re-install it clean again

Please go to Add/Remove programs and locate you sound program (presently unknown to me)
After that, go to Start -> Run -> devmgmt.msc -> OK
Confirm your sound driver is fully un-installed by clicking the + sign on Sound
(You can select each one then uninstall it)

You may need to restart (but if Windows does not state this, then continue on

Under the sound + sign, yes remove them all.
In add/remove progs. it should be something live SoundBlaster or Realtec or I don't know, as I don't know what sound program driver you have installed.
And where's the song and dance ?